Feed-water heater.



F. EBERHART.

EEEn WATER HEATER.

APPLICATION FILED FEB. 5' 1912.

1,151,577. 1 Patented Aug. 31, 1915.

3 SHEETS-SHEET WlTNESSES: k

. EBERHART.

FEED WATER HEATER.

APPLICATION men FEB.5.1912.

SHEET2.

ted Aug 3 SHEETS aten WIIIIIIIIII IIIIIIIJIIIIIIIIII WITNESSES:

F. EBERHART.

I FEEDWATER HEATER. APPLICATION FILED FEB. 5. 1912.

Patented Aug. 31, 1915.

3 SHEETS-SHEET 3.

WiTNESSES dlS FRANK EBERHABT, on new YORK, N. Y.

FEED-WATER HEATER.

I Epecification of Letters Patent.

Patented Aug. 31, 1915.

Application filed February 5, 1912. Serial n). 675,573. 4

To all whom it may concern: r

Be it known that I, FRANK EBERHART, 'a citizen of the United States, and a resident of New York city, in the county and Stateof New York, have invented a certain new and. useful Improvement in Feed-'Water Heaters, of which the following-is a specification. 1 a

My invention relates to feed water heaters or fuel economizers, and is adapted for use in connection with any heating system.

I have found that by connecting my heater or fuel economizer in a by-pass around a damper 1n the flue in such a way that it is necessary for the waste heat in the escaping gases to pass through'the heater or economizer, manyadvantages result in addition to the great saving in, fuel consumption. fine of the advantages of my invention is that it is adapted for use in any heating system, the heater being so 'constructed' and so connected with the system hat it may be readily connected. to and disconnected from the system, or may be operatively e, t temporarily. I have also found that, by dividing my heater into two com.

partments connected at the end opposite the connection with the fine, a propercirculation of the waste heat is obtained.

1n the drawings forming a part hereof, Figure 1 is an illustration of my feedwater heater or fuel economizer and its connections; Fig. 2 is a view of my fuel economizer with the door removed; Fig. 3 is a side view of Fig. 1 with the door in place taken through the center: Fig. 4 is an interior view from the top of Fig. 2'with the heat-' ing coils removed; Fig. 5 is a detail of the dividing plate; Fig. 6 is an interior view of the door; and Fig. 7 is a modification of my invention.

In the drawings, in which like numbers refer to like parts, 1 is the ordinary smoke pipe or fine leading from the fire box to the chimney, providedwith dampers 4 and 5; 6 is my improved fuel economizer which is connected by pipes or flues 2 and 3 arranged as a by-pass around the damper 4 in the smoke pipe or fine 1.

My economizer 6 is preferably made of sheet metal lined 0n the inside with asbestos board 7 to prevent heat radiation. It may,

however, be-made of concrete or any suit-' able masonry work. The lining may be omitted, however, if it is desirable to use the economizer for heating the room in which it is placed. I prefer to place my economizer close to the boiler, although this is not essential;

8 and 9 represent, respectively, the top and bottom of the economizer.

My economizer I preferably mount upon legs 10, 10 made of angle iron, by cutting out triangular pieces and bending the angle irons, as shown in Fig. 3. The legs 10, 10 ]are connected together by an angle iron or To secure proper circulation of theheat I in the economizer I divide the interior into two compartments 12 and 13 connected by separate passages with the smoke pipe or flue and connected with each other by a passage at the ends of the compartments opposite the end when they connect with the smoke pipe or flue. For this purpose, I provide a division plate 14, which is held in place by angle irons 19, 19 arranged down the back of the economizer, angle irons20,

20 across the top, anglev irons 42, 42 on the I inside of the door and by the bar 18, connected at its ends to legs 16. The angle in pairs parallel to each other form slots for irons 19, 19, 20, 20, 42, 42, being'arranged the division plate 14. Legs 10, 10 support 'ing the economizer casing are arranged below legs 16 within the economizer, so as to be bolted thereto, if desired. 1

The coil 25 for the water to be heated,

which, as shown, is an ordinary radiator, is

mounted upon the legs 16, and is held in place thereon by the flanges 17. 1 The coil 25 may be arranged vertically, as shbwn, or

horizontally if desired, and any coil of pipes or other means for holding the .waterto be heated maybe used in place, of the coil or radiator shown. The dividing plate 14 is -composed of three members, as shown in Figs. 3 and 5, thetwo smaller members being adapted to fit behind the'radiator at the upper corner, and at the lower corner, and provided with cut-outs 48 to register with the nipples between the coils in the radiator. The other member of the dividing plate 14 is provided with similar out-outs 43 to register with the radiator nipples, and if so formed that when the radiator has been placed in position within the casing of the economizer and the members composing the plate 14 are in position, the chamber is com- I pletely divided into two compartments so that there is no connection between the com partments except the passag 45 below the? which the larger member of the plate 14 will slide, while the larger member is provided with similar small plates 22, 22", forming a similar groove for the smaller n'iembers to slide into. It will be seen that by placing the two smaller members of plate Ll in their positions between the angle irons at the top, bottom and back of the casing and then placing the radiator in position on the legs 16, that the larger member of the plate 1 1% may he slid into position between the coils of the radiator and will be held in position by the grooves formed by the small plates '22, 22, the angle irons arranged on the back of the casing, andby the angle irons ar ranged on the inner side of the door of the casing, thus dividin the economizer into two compartments an separating the coil into two parts, one in each compartment. The front of thecasing is provided with angle irons 38, shown in Fig. 4:, bolted to the sides ofthe cabinet and adapted to act as a door frame. door 35, which is substantially the full size of the casing to afford easy access for clean ing, is provided with angle iron s 36 extending entirely around its inner side, and arranged so as'to pass Within the angle irons 38 and hold the door in position. I provide clamping devices 34 for locking the door in position, preferably using wedge-shaped clamps such as are used in connection with ice-boxes, etc, for the purpose of forcing the door inward so as to make the cabinet comparatively air-tight,

Iii-order to distributethe heat throughout the compartment I provide the spreader plates 46, which I place on the top' of the coil in each compartment, and these plates 46 may be fiat, as shown and provided with openings 47 arranged to permit the heat to come in contact with all parts of the liquid containers or may be in conical form provided with ,suitable openings if desired, or may be of one-piece of 'metal'without any openings. This spreader is not essential in all the forms of myinvention but it will be found to be advantageous in some instances, especially where the area of the compartments through which, the heat passes is greater than the area of thcsmoke pipe or flue, or

the'inlet pipe 2, the object oii the spreader being to. direct the heat into contact with the exposed surface of the coils.

fuel economizeris connected with the return pipe for the water of condensation or with the feedwater pipe, or both, as follows: 28 is the feed water pipe; 27 is a sup-' ply pipe connecting my fuel economizer with the pipe 28. '26 is a valve placed in The inner side of the the pipe 27 between the feed water or return pipe iii-land theentrance to the fuel economizer.

pipe or feed water pipe ZS to the boiler pipe 31 and adapted to act a by pass around my econoinizen This pipe 29 is provided with a valve 30;

My fuel econoiniser may be connecfied with. the supply-pipe at the top of the coil and the dischargetahen from the bottomrif desired, as shown 7.

In use, my fuel econoinizer operates as follows: The valve 559 in the pipe 30 being closed, and the valves 96 and 353 in the pipes 2-7 and 44; respectively, beingopen, the do mice is ooeratively connected with the boiler. it it is desired some reason not to use the ec'onomizer the valves all and 32 are closed and the valve open, thus permitting the water to pass directly from the return or feed water pipe 28 through the pipe 29 into the pipe 31 directly to the boiler. Assumin the fire to have been started, and the va ve 3G in the pipe 29 closed, the valves damper 4 was closed, be compelled to pass down through the pipe 2 into the fuel economizer on one side of the dividing plate through passage 45 below the dividing plate, 14, up through the other compartment on the opposite side of the dividing plate, out

, through the pipe 3 into the flue 1, and thus to the chimney. The heat in thus passing down through one side of the economizer and up the other, would be caused to circulate around throu h coil 25, thus heating the feed water or reheating the water of condensation within the coil so as to supply same to the boiler in a heated condition.

In Fig. 7 I have shown a modification of my device in which the casing 38 is provided with doors 39 in the front and doors40 on the bottom, held in position by means. of thumb-bolts or fasteners 41, and so arranged as to be easily removed for the purpose of access to the device so as to clean same. In this form, I have shown the pipes arranged 'in'liorizontal position. This form may be used without the division plate, where the area of the interior of the heater or econo-' inizen-after deductinga space occupied by the coil, is substantially the same as-the area of the. smoke pipe or flue 2. If the area of the interior of the economizer or the heater is, after deducting the space occupied by the coils, greater than the area of thesmoke pipe 2, then it will be found to be advantageous to use a similar division, and perhaps the spreader device.

What I claim is: Y

Y 1. In an economizer, a casing, angle irons arranged on one side of said casing, a door adapted to form the front of said casing, and angle irons arranged on said door and adapted to cooperate with those on the front of the casing to hold the door in position.

- 2. In an economizcr, a casing, angle irons arranged on one side of said casing to form a door frame, a door adapted to form the front of said. casing, angle irons arranged orr'said door and adapted to cooperate with llllOSQ on the front of the casing to hold the door in position, and means for fixedly securingsaid door in position.

3. In an economirter, a casing, bafile plates adapted to divide said easing into compartmerits, a door adapted to formthc entire front of said casing, and angle irons arranged in pairs on the inner side of said door and said casing to engage with said baffle-plates and hold the same in position.

In an economizer, a casin bathe-plates adapted to divide said. casing into compartments, a door adapted to form the entire front of said casing, angle irons arranged in pairs on said door and said casing to form grooves to accommodate, said battle-plates and hold the same in position, and said casing havir "5 openings in the top thereof into each of said compartments; i

55. In an econiunizer, angle irons arranged to form legs therefor, a, tie rod connecting said legs, legs Within said economizer arranged immediately above the aforesaid legs, a tie rod connecting said last-mentioned legs, and a Water container mounted on said legs.

6. A heat-interchanging device comprising a casing, fluid-conducting; coils therein, pipes connecting said coils, and means separating said easing into compartments, comprising a plurality of members having cutaway portions to fit around said pipes, said mcmhers all cooperating together to-form a complate partition between said compartments.

'1. s hcatinterchanging device, comprising a casingadapted to conduct a licat-conveiling med mm longitudinally thercthrough,

a iiHid-conducting coil therein comprising a plurality oi units extendiii longitiuliually oi the c: sin; and being qacod to provide unobstructed passages from one and of the casing: to the other end thereof betwecn their long diual faces, bellies coop ting with said. an to cause a uniform pow of heat-- lg medium therebetiveen.

a casing having a 8: ln an econoniiser,

opening: in one side,

partition therein extending fromthe top to a point near the bottom thereof and forming longitudinalpassages therein, fluid coils for said passages extending from the top of the casing to a point above the bottom of said partition, the coils having longitudinal faces parallel to.fe'a-ch other and spaced to provide unobstructed passages between them and longitudinally of the casing, and means for conducting heated gas to the top of one passage and from the top of the other.

9. loan economizer, a casing'having an opening in oneside, angle irons on said casing around the edges ofthe opening and a door for said opening, angle irons arranged on'said door and'adapted to cooperate with the angle irons on said casing to hold the door in said opening, angle irons attached to the Wall of the casing opposite the Wall having the opening therein and spaced to form a groove, angle irons attached to the top of said casing and spaced to'form a groove, angle irons attached to the door and spaced to form a groove, apartition positioned in and held by said grooves and extending from the top of the casing to a point near the bottom thereof and forming two passages therein, fluid coils in said passages, means to support said coils and said partition, and means for conducting heated gas to the top of one of said passages and from the top or" the other passage.

10. In an economizer, a casing, a supporting frame for the casing, supports Within said casing and resting on the bottom thereof, fluid coilshaving legs resting on said supports and having parallel vertical faces forming unobstructed vertical passages therebetween, a tie rod connecting said supports, a partition dividing said casing into vertical passages and supported by said tie rod and extending therefrom between certain faces of said coils to the top of said 0215- 11. In an ecouomizer, a casing having an a door for said opening, angle irons attached to the Wall of the casing opposite the wall having the opening therein and spaced to form a groove, angle irons attached to thetop of said casing and spaced to form a groove, angle irons attached to the door and spaced to form a groove, a partition positioned in and held by said grooves. and extending from the top of the casing: to a point near the bottom thereof and forming two passages therein, fluid coils in said passages, means to support said coils and said partition, and means for conducting heated gas to the top of one of said passages and from the top of the other passage.

12, In an. economizer, a casing, supporting legs therein for a fluid coil, a fluid coil supported by and spaced abo've said legs, a par- In testimony whereof, I have signed my tition extending between certain faces 0f name to this specification, in the presence of .10 said coil from the top of the casing down two subseribing witnesses. to the level of the tops of and being sup- FR LXNK EBWRHART 5 ported from said legs, and means for conducting heated gas to the casing at one side Witnesses: of said partition and from said casing at the GEO. W. MILLS, JR, other side-of said. partition. EDWIN SEGER. 

